Time-controlled switch for electric lights.



W. C. MARROW 51]. M. BIDDLE.

TIME CONTROLLED SWITCH FOR ELECTRIC LIGHTS.

APPLICATION FILED MAR. 8. 1915.

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Patented Sept. 21, 1915.

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W. C. MARROW & J. M. RIDDLE.

TIME CONTROLLED SWITCH FOR ELECTRIC LIGHTS.

APPLICATTON FILED MAR. s. 1915.

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WILLIAM G. MAB/ROW, OF'NARRAGANSETT PIER, BJ-IOIDE ISLAND, AND JOH N M.BIDDLE, OF WASHINGTON, DISTRICT OFCOLUMBIA.

' TIME-CONTROLLED SWITCH FOR ELECTRIC LIGHTS.

To all whom it may concern:

Be it known that we, WILLIAM C. MAR- now and JOHN M. BIDDLE, citizens ofthe United States, and residents, respectively,

of Narragansett Pier, in the county of Washington and State of RhodeIsland, an of Washington, in the District of Columbia,

have invented new and useful Improvements in Time-Controlled Switchesfor Electric Lights, of which the following is a specification. 7

Our invention relates to time controlled switches for electric lights,and pertains more particularly to means for automatically lighting theelectric lamps of automobiles at a predetermined time.

j The object of our invention is to produce a device for automaticallylighting electric lamps at a predetermined time.

A further object thereof is to produce a device attached to an alarmclock of conventional form adapted to be set for automatically closingthe electric circuit from a suitable source of supply for lighting elec-Y tric lamps at a predetermined time, and a still further object thereofis to produce amore simple, cheap and efiicient device of said characterthan has heretofore been attained.

To these ends, and for others as will hereinafter appear, our inventionincludes the combination and arrangement of component parts tobe hereindescribed and more particularly pointed out in the claim.

In the accompanying drawings in which like reference characters indicate.similar parts, Figure 1 is a diagrammatical plan view of our inventionapplied to an automobile; Fig. 2 is a front" view ofour clock andcircuit closerattached thereto; Fig. 3 is a top plan view of the timecontrolled escapement for actuating the circuit closer;'Fig. a is atopplan view of our circuit closer and electrical contacts; Fig. 5 is aback view 01' our clock controlled switch actuating apparatus andcircuit closer; Fig. 6 is a transverse sectional view of our circuitcloser taken on the line 6-6 of Fig. 4, and. Fig. 7 is a detailperspective view of the switch plate carried on our circuit closer.

Referring now to the drawings, thenumerals 1, 2 and 3 designate electriclamps connected with the circuit wires A and B leading from a source ofsupply C. The circuit wires, as shown, are broken and attached to theposts 4: and 5 adjacent to each Specification of Letters Patent. P m t aS t, 21,1 15

" 7 Application filed. March 8,1915. Serial No. 12,894

other and of conducting material, which posts are adapted to beelectrically connected and disconnected to illuminate and darken thelamps as hereinafter described.

Our apparatus for connecting and com- -pleting the electrical circuitbetween'the posts 4: and 5 comprises the plunger 6 car ried in'thelateralcase-7 attached tothe 'case a longitudinal slot in the lateralcase 7 and bearing against its inner wall.

As shown in the drawings, the inner end of our plunger is adapted to beengaged and pressed outwardly by the spring actuated pivoted finger 12mounted on the frame 13 of an alarm clock of conventional form. Saidfinger is provided with a notch 12' adapted to engage one end of thepivoted trigger 14 to hold the finger out of contact with the plungerwhen the electrical circuit is open, which trigger is adapted to betripped by the rotation of the cog wheel 15 connected with the oppositeend of the trigger l t by the rod or pitman 16 eccentrically attached tothe cog. Said cog 15, as shown, is mounted on the clock frame and mesheswith the idler cog-wheel 17. The latter wheel 17 is adapted to beengaged by and mesh with the wheel 19 when the latter wheel 19 is movedoutwardly at a predeterminedtime at which the mechanism controlling saidcam may be set. The means for actuating said wheel 19 are ofconventional form, and as they form no part of our inven- 4: and 5, bywhich action the finger 12 is 110 sot a clock 9. Said plunger ispreferably pushed backward to engage the trigger 14:- The clockmechanism may be set for release at a desired time, the action of whichWill trip the trigger 1i and allow the springpressed finger 12 to movethe plunger out Wardly and contact the switch plate with the poles 4:and 5, and thus complete the electric circuit through the lampsconnected therewith.

Having thus described our invention, What We claim as new and desire tobe secured by Letters Patent, is

A mechanism for making electrical contacts comprising a pair of fixedcontacts, a slidable bar having a switch plate therein adapted tocontact with and close an electrical circuit through said fixedcontacts, clock mechanism, a spring-actuated finger for moving said barand switch plate into closed contact with said fixed contacts, a triggerfor holding said finger out of actuating contact with said movableswitch, a normally dormant gear on said clock mechanism connected Withsaid trigger, and means connected With the clock mechanism for actuatingsaid trigger actuating gear at a predetermined time. 7

WVILLIAM C. MARROWV.

JOHN M. BIDDLE.

WVitnesses:

D. G. SHANKS, D. G. SHANKS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

